| 摘要: |
| 本文报导我们研制的一种单片微机控制的锁相环频率合成器。它以大规模集成芯片ＭＣ１４５１４６为中心，配以参考振荡器、环路滤波器、直流放大器、压控振荡器、双模前置分频器以及单片机频率控制系统。 |
| 关键词: 微机 锁相环 频率合成器 环路部件 硬件结构 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目: |
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| A Phase-locked Loop Frequency SynthesizerControlled With a Monolithic Micro-computer |
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| Abstract: |
| A phase-locked loop frequency synthesizer controlled with a monolithic microcomputer has been developed.It consists of a LSI circuit MC145146 as the centre of this synthesizer,a reference oscillator,a dc amplifier,a loop filter,a voltagecontrolled oscillator,a doublemode freqrency pre-divider and a monolithic computer control system. The output frequency can be changed with step from 56 to 60 MHz,the resolution is up to 25 kHz. In this paper, the circuits of the basic units of the loop,the hardware and the software of the monolithic micro-computer control system are described. |
| Key words: Monolithic Micro-computer. Phase-locked Loop Frequency Synthesizer,Units of the Loop,Hardware Circuit,Control Software. |
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